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Volvo 240 1975 Service Manual page 40

Repairs and maintenance, ignition systems
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grcakerless ignition system
E. lgnition coil and HT leads
E 1
Testing ignition coil. ballast resistorand HT leads
. l g n i t i o n c o i l a n d b a l l a s t r e s i s t o r a t a p p r o x i m a t e y
20"c (68"F)
. A l l l e a d s d i s c o n n e c t e d f r o m c o m p o n e n t s u n d e r t e s t .
0'
0
t
I
Meesuring resistance ot ballast resistor
B 20, B 19-8 23
8 2 t , 8 2 4 . . . . . . . . .
{Bolh resistors are connected in series)
E2
0.910.',t o
1 . 0 1 0 . 1 f )
I
I
,[
E3
Checking ignition coil
- check outer casing for cracks
- measure resistance
across terminats j ( )and 15(+).
8 2 0 , B 1 9 8 2 3 . . . . . .
. . . . .
. . . t . g i o . t o
B 2 7 , B 2 A . . .
. . . .
0 . 5 1 0 . 1 ( )
- m e a s u r e r e s i s t a n c e a c r o s s t e r m i n a l l ( - ) a n d H T t e r
A l l m o d e l s : 9 . 5 i 1 . 5 k ( ) .
38

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260 1975